<template>
  <div>
    <!-- 面包屑导航区 -->
    <el-breadcrumb separator-class="el-icon-arrow-right">
      <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
      <el-breadcrumb-item>用户管理</el-breadcrumb-item>
      <el-breadcrumb-item>用户列表</el-breadcrumb-item>
    </el-breadcrumb>
    <!-- 卡片视图区域 -->
    <el-card>
      <div>
        <!-- 搜索与添加区域 -->
        <el-row :gutter="15">
          <el-col :span="8">
            <el-input placeholder="请输入内容" v-model="queryInfo.query" clearable @clear="getUserList">
              <el-button @click="getUserList" slot="append" icon="el-icon-search"></el-button> 
            </el-input>
          </el-col>
          <el-col :span="4">
            <el-button type="primary" @click="addDialogVisible = true">添加用户</el-button>
          </el-col>
        </el-row>

        <!-- 用户列表区域 -->
        <el-table :data="userlist" border stripe>
          <el-table-column type="index" label="#"></el-table-column>
          <el-table-column label="姓名" prop="username"></el-table-column>
          <el-table-column label="邮箱" prop="email"></el-table-column>
          <el-table-column label="电话" prop="mobile"></el-table-column>
          <el-table-column label="角色" prop="role_name"></el-table-column>
          <el-table-column label="状态" prop="mg_state">
            <template v-slot="scope">
              <!-- {{ scope.row }} -->
              <el-switch v-model="scope.row.mg_state" @change="userStateChanged(scope.row)">
              </el-switch>
            </template>
          </el-table-column>

          <el-table-column label="操作" width="180px">
            <template v-slot="scope">
              <!-- 修改按钮 -->
              <el-button type="primary" icon="el-icon-edit" size="mini" @click="showEditDialog(scope.row.id)"></el-button>
              <!-- 删除按钮 -->
              <el-button type="danger" icon="el-icon-delete" size="mini" @click="removeUserById(scope.row.id)"></el-button>
              <!-- 分配角色按钮 -->
              <el-tooltip effect="dark" content="分配角色" placement="top" :enterable="false">
                <el-button type="warning" icon="el-icon-setting" size="mini" @click="setRole(scope.row)"></el-button>
              </el-tooltip>
            </template>
          </el-table-column>
        </el-table>

        <!-- 分页区域 -->
        <el-pagination
          @size-change="handleSizeChange" @current-change="handleCurrentChange" :current-page="queryInfo.pagenum"
          :page-sizes="[1, 2, 5, 10]" :page-size="queryInfo.pagesize" layout="total, sizes, prev, pager, next, jumper"
          :total="total">
        </el-pagination>
      </div>
    </el-card>

    <!-- 添加用户的对话框 -->
    <el-dialog title="添加用户" :visible.sync="addDialogVisible" width="50%" @close="addDialogClosed">
      <!-- 内容主题区域 -->
      <el-form :model="addForm" :rules="addFormRules" ref="addFormRef" label-width="70px">
        <el-form-item label="用户名" prop="username">
          <el-input v-model="addForm.username"></el-input>
        </el-form-item>
        <el-form-item label="密码" prop="password">
          <el-input v-model="addForm.password"></el-input>
        </el-form-item>
        <el-form-item label="邮箱" prop="email">
          <el-input v-model="addForm.email"></el-input>
        </el-form-item>
        <el-form-item label="手机" prop="mobile">
          <el-input v-model="addForm.mobile"></el-input>
        </el-form-item>
      </el-form>
      <!-- 底部区域 -->
      <span slot="footer" class="dialog-footer">
        <el-button @click="addDialogVisible = false">取 消</el-button>
        <el-button type="primary" @click="addUser">确 定</el-button>
      </span>
    </el-dialog>

    <!-- 修改用户的对话框 -->
    <el-dialog title="修改用户" :visible.sync="editDialogVisible" width="50%" @close="editDialogClosed">
      <el-form :model="editForm" :rules="editFormRules" ref="editFormRef" label-width="70px">
        <el-form-item label="用户名">
          <el-input v-model="editForm.username" disabled></el-input>
        </el-form-item>
        <el-form-item label="邮箱" prop="email">
          <el-input v-model="editForm.email"></el-input>
        </el-form-item>
        <el-form-item label="手机" prop="mobile">
          <el-input v-model="editForm.mobile"></el-input>
        </el-form-item>
      </el-form>
      <span slot="footer" class="dialog-footer">
        <el-button @click="editDialogVisible = false">取 消</el-button>
        <el-button type="primary" @click="editUserInfo">确 定</el-button>
      </span>
    </el-dialog>

    <!-- 分配角色对话框 -->
    <el-dialog
      title="分配角色"
      :visible.sync="setRoleDialogVisible"
      width="50%"
      @close="setRoleDialogClosed">
      <div>
        <p>当前的用户:{{ userInfo.username }}</p>
        <p>当前的用户:{{ userInfo.role_name }}</p>
        <p>
          分配新角色:
          <el-select v-model="selectedRoleId" placeholder="请选择">
            <el-option v-for="item in rolesList" :key="item.id" :label="item.roleName" :value="item.id"></el-option>
          </el-select>
        </p>
      </div>
      <span slot="footer" class="dialog-footer">
        <el-button @click="setRoleDialogVisible = false">取 消</el-button>
        <el-button type="primary" @click="saveRoleInfo">确 定</el-button>
      </span>
    </el-dialog>
  </div>
</template>
<script>
export default {
  data() {
    // 校验邮箱的规则
    // var checkEmail = (rule, value, cb) => {
    // // 验证邮箱的正则表达式
    // const regEmail = /^\w+([-+.]\w+) @\w+([-.]\w+).\w+([-.]\w+)*$/
    // // 如果验证邮箱正确，返回回调函数，输入框显示绿色
    //  if (regEmail.test(value)) {
    //  return cb()
    // }
    // // 如果验证不正确
    // cb(new Error('请输入合法的邮箱！'))
    //  }

    // 校验手机号的规则
    var checkMobile = (rule, value, cb) => {
      // 验证手机号的正则表达式
      const regMobile =
        /^(0|86|17951)?(13[0-9]|15[012356789]|17[678]|18[0-9]|14[57])[0-9]{8}$/;
      // 如果验证手机号正确，返回回调函数，输入框显示绿色
      if (regMobile.test(value)) {
        return cb();
      }
      // 如果验证不正确
      cb(new Error("请输入合法的手机号！"));
    };

    return {
      // 获取用户列表的参数对象
      queryInfo: {
        query: "",
        //当前的页数
        pagenum: 1,
        //当前每页显示多少条数据
        pagesize: 2,
      },
      userlist: [],
      total: 0,
      // 控制添加用户对话框的显示与隐藏
      addDialogVisible: false,
      //添加用户的表单数据
      addForm: {
        username: "",
        password: "",
        email: "",
        mobile: "",
      },
      //添加表单的验证规则对象
      addFormRules: {
        username: [
          { required: true, message: "请输入用户名", trigger: "blur" },
          {
            min: 3,
            max: 10,
            message: "用户名的长度在3~10个字符之间",
            trigger: "blur",
          },
        ],
        password: [
          { required: true, message: "请输入密码", trigger: "blur" },
          {
            min: 6,
            max: 15,
            message: "密码的长度在6~15个字符之间",
            trigger: "blur",
          },
        ],
        email: [
          { required: true, message: "请输入邮箱", trigger: "blur" },
          // { validator: checkEmail, trigger: 'blur' }
          {
            type: "email",
            message: "请输入正确的邮箱地址",
            trigger: ["blur"],
          },
        ],
        mobile: [
          { required: true, message: "请输入手机号", trigger: "blur" },
          { validator: checkMobile, trigger: "blur" },
        ],
      },
      // 控制修改用户对话框的显示与隐藏
      editDialogVisible: false,
      //查询到的用户对象
      editForm: {},
      // 修改表单的验证规则对象
      editFormRules: {
        email: [
          { required: true, message: "请输入用户邮箱", trigger: "blur" },
          {
            type: "email",
            message: "请输入正确的邮箱地址",
            trigger: ["blur"],
          },
        ],
        mobile: [
          { required: true, message: "请输入手机号", trigger: "blur" },
          { validator: checkMobile, trigger: "blur" },
        ],
      },
      // 控制分配角色对话框的显示与隐藏
      setRoleDialogVisible: false,
      // 需要被分配角色的用户信息
      userInfo: {},
      //所有角色的数据列表
      rolesList: [],
      // 已选中的角色id值
      selectedRoleId:''
    };
  },
  created() {
    this.getUserList();
  },
  methods: {
    //请求用户列表
    async getUserList() {
      const { data: res } = await this.$http.get("users", {
        params: this.queryInfo,
      });
      // console.log(res);
      if (res.meta.status !== 200) {
        return this.$message.error("获取用户列表失败!");
      }
      this.userlist = res.data.users;
      this.total = res.data.total;
    },

    // 监听 pagesize 改变的事件 每页显示多少条的下拉菜单
    handleSizeChange(newSize) {
      // console.log(newSize);
      this.queryInfo.pagesize = newSize;
      this.getUserList();
    },

    // 监听页码值改变的事件
    handleCurrentChange(newPage) {
      // console.log(newPage);
      this.queryInfo.pagenum = newPage;
      this.getUserList();
    },
    //监听 switch 开关状态的改变
    async userStateChanged(userinfo) {
      console.log(userinfo);
      const { data: res } = await this.$http.put(
        `users/${userinfo.id}/state/${userinfo.mg_state}`
      );
      if (res.meta.status !== 200) {
        userinfo.mg_state = !userinfo.mg_state;
        return this.$message.error("更新用户状态失败!");
      }
      this.$message.success("更新用户状态成功!");
    },

    //监听添加用户对话框的关闭事件
    addDialogClosed() {
      console.log(this);
      this.$refs.addFormRef.resetFields();
    },
    //点击按钮，添加新用户
    addUser() {
      this.$refs.addFormRef.validate(async (valid) => {
        // console.log(valid);
        if (!valid) return;
        //可以发起添加用户的网络请求
        const { data: res } = await this.$http.post("users", this.addForm);
        // console.log(res);
        if (res.meta.status !== 201) {
          return this.$message.error("添加用户失败");
        }
        this.$message.success("添加用户成功");
        //隐藏添加的对话框
        this.addDialogVisible = false;
        // 重新获取用户列表数据
        this.getUserList();
      });
    },
    // 展示编辑用户的对话框
    async showEditDialog(id) {
      // console.log(id);
      const { data: res } = await this.$http.get("users/" + id);
      console.log(res);
      if (res.meta.status !== 200) {
        return this.$message.error("查询用户信息失败");
      }
      // this.$message.success("查询用户信息成功");
      this.editForm = res.data;
      this.editDialogVisible = true;
    },
    //监听修改用户对话框的关闭事件
    editDialogClosed() {
      this.$refs.editFormRef.resetFields();
    },
    //修改用户信息并提交
    editUserInfo() {
      this.$refs.editFormRef.validate(async (valid) => {
        if (!valid) return;
        //发起修改用户信息的数据请求
        const { data: res } = await this.$http.put(
          "users/" + this.editForm.id,
          {
            email: this.editForm.email,
            mobile: this.editForm.mobile,
          }
        );

        if (res.meta.status !== 200) {
          return this.$message.error("更新用户信息失败");
        }
        //关闭对话框
        this.addDialogVisible = false;
        // 刷新数据列表
        this.getUserList();
        //提示修改成功
        this.$message.success("更新用户信息成功");
      });
    },
    //根据id删除对应的用户信息
    async removeUserById(id) {
      // console.log(id);
      //弹框询问用户是否删除数据
      const confirmResult = await this.$confirm(
        "此操作将永久删除该用户, 是否继续?",
        "提示",
        {
          confirmButtonText: "确定",
          cancelButtonText: "取消",
          type: "warning",
        }
      ).catch((err) => err);
      console.log(confirmResult);
      // 如果用户确认删除，则返回字符串 confirm
      // 如果用户取消了删除，则返回字符串 cancel
      if (confirmResult !== "confirm") {
        return this.$message.info("已取消删除");
      }
      const { data: res } = await this.$http.delete("users/" + id);
      // console.log(res);
      if (res.meta.status !== 200) {
        return this.$message.error("删除用户失败");
      }
      this.$message.success("删除用户成功");
      this.getUserList();
    },
    // 展示分配角色对话框
    async setRole(userInfo) {
      this.userInfo = userInfo;
      // 在展示对话框之前，获取所有的角色列表
      const { data: res } = await this.$http.get("roles");
      if (res.meta.status !== 200) {
        return this.$message.error("获取角色列表失败！");
      }
      this.rolesList = res.data;
      this.setRoleDialogVisible = true;
    },
    //点击按钮，分配角色
    async saveRoleInfo(){
      if(!this.selectedRoleId){
        return this.$message.error('请选择要分配的角色!')
      }
      const{data:res}=await this.$http.put(`users/${this.userInfo.id}/role`,{
        rid:this.selectedRoleId
      })
      if(res.meta.status !==200){
        return this.$message.error('更新角色失败!')
      }
      this.$message.success('更新角色成功!')
      this.getUserList()
      this.setRoleDialogVisible=false
    },
    // 分配角色对话框的关闭事件
    setRoleDialogClosed(){
      this.selectedRoleId=''
      this.userInfo=''
    }
  },
};
</script>
<style lang="less" scoped>
</style>